alibaba/nacos · error · NacosLockException
tryLock error.
Error message
tryLock error.
What it means
Error "tryLock error." thrown in alibaba/nacos.
Source
Thrown at lock/src/main/java/com/alibaba/nacos/lock/service/impl/LockOperationServiceImpl.java:447
request.setLockInfo(lockInfo);
WriteRequest writeRequest = WriteRequest.newBuilder().setGroup(group())
.setData(ByteString.copyFrom(serializer.serialize(request)))
.setOperation(LockOperationEnum.ACQUIRE.name()).build();
try {
Response response = protocol.write(writeRequest);
if (response.getSuccess()) {
return serializer.deserialize(response.getData().toByteArray());
}
throw new NacosLockException(response.getErrMsg());
} catch (NacosLockException e) {
int paramSize = lockInstance.getParams() == null ? 0 : lockInstance.getParams().size();
LOGGER.error("key: {}, lockType:{}, paramSize:{} lock fail, errorMsg: {}",
lockInstance.getKey(),
lockInstance.getLockType(), paramSize, e.getMessage());
throw e;
} catch (Exception e) {
LOGGER.error("lock fail.", e);
throw new NacosLockException("tryLock error.", e);
}
}
@Override
public LockResult unLock(LockInstance lockInstance) {
MutexLockRequest request = new MutexLockRequest();
LockInfo lockInfo = new LockInfo();
lockInfo.setKey(new LockKey(lockInstance.getLockType(), lockInstance.getKey()));
lockInfo.setParams(lockInstance.getParams());
lockInfo.setOwner(lockInstance.getOwner());
request.setLockInfo(lockInfo);
WriteRequest writeRequest = WriteRequest.newBuilder().setGroup(group())
.setData(ByteString.copyFrom(serializer.serialize(request)))
.setOperation(LockOperationEnum.RELEASE.name()).build();
try {
Response response = protocol.write(writeRequest);
if (response.getSuccess()) {
return serializer.deserialize(response.getData().toByteArray());View on GitHub (pinned to 9b989acdf1)
Solutions
- Inspect the server logs for the underlying cause, fix it, and retry the operation.
When it happens
Trigger: Thrown at lock/src/main/java/com/alibaba/nacos/lock/service/impl/LockOperationServiceImpl.java:447 when the library encounters an invalid state.
Common situations: A tryLock call failed on the server.
AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14).
Data as JSON: /api/errors/9deb8d3212146534.
Report an issue: GitHub.